code: def native_exec(self):
      print("Running test natively using %s" % sys.executable)
      run_test()
      self.next(self.join)
  
file_path: metaflow/test/env_escape/example.py
imports: import os
  import sys
  from metaflow import FlowSpec, step, conda
label_desc: Use image node_id 2 for calling the EscapeTest obj's underlying member method code with example usage: obj.native_exec() without return types